The index of refraction of a certain type of glass is expressed by the relation: 4825 nm? n(1) = 1.525 + 22 What is the group velocity of a pulse propagating in this glass and centered at 400 nm? O 2.916 x10^8 m/s O 1.916 x10^8 m/s O 1.894 x 10^8 m/s O 1.845 x10^8 m/s O 2.845 x10^8 m/s O 2.894 x 10^8 m/s

The index of refraction of a certain type of glass is expressed by the relation: 4825 nm? n(1) = 1.525 + 22 What is the group velocity of a pulse propagating in this glass and centered at 400 nm? O 2.916 x10^8 m/s O 1.916 x10^8 m/s O 1.894 x 10^8 m/s O 1.845 x10^8 m/s O 2.845 x10^8 m/s O 2.894 x 10^8 m/s

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Wave Optics

Section: Chapter Questions

Problem 10OQ: A Fraunhofer diffraction pattern is produced on a screen located 1.00 m from a single slit. If a...

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Figure P24.69 shows a radio-wave transmitter and a receiver, both h = 50.0 m above the ground and d = 6.00 102 m apart. The receiver can receive signals directly from the transmitter and indirectly from signals that bounce off the ground. If the ground is level between the transmitter and receiver and a /2 phase shift occurs upon reflection, determine the longest wavelengths that interior (a) constructively and (b) destructively. Figure P24.69
A spacer is cut from a playing card of thickness 2.90 104 m and used to separate one end of two rectangular, optically flat. 3.00-cm long glass plates with n = 1.55, as in Figure P24.24. Laser light at 594 nm shine straight down on the top plate. The plates have a length of 3.00 cm. (a) Count the number of phase reversals for the interfering waves. (b) Calculate the separation between dark interference Kinds observed on the lop plate.
A spacer is cut from a playing card of thickness 2.90 104 m and used to separate one end of two rectangular, optically flat. 3.00-cm long glass plates with n = 1.55, as in Figure P24.24. Laser light at 594 nm shine straight down on the top plate. The plates have a length of 3.00 cm. (a) Count the number of phase reversals for the interfering waves. (b) Calculate the separation between dark interference Kinds observed on the lop plate.
The movable mirror of a Michelson interferometer is attached to one end of a thin metal rod of length 23.3 mm. The other end of the rod is anchored so it does not move. As the temperature of the rod changes from 15°C to 25 C , a change of 14 fringes is observed. The light source is a He Ne laser, =632.8 nm . What is the change in length of the metal bar, and what is its thermal expansion coefficient?
Figure P24.69 shows a radio-wave transmitter and a receiver, both h = 50.0 m above the ground and d = 6.00 102 m apart. The receiver can receive signals directly from the transmitter and indirectly from signals that bounce off the ground. If the ground is level between the transmitter and receiver and a /2 phase shift occurs upon reflection, determine the longest wavelengths that interior (a) constructively and (b) destructively. Figure P24.69
A Fraunhofer diffraction pattern is produced on a screen located 1.00 m from a single slit. If a light source of wavelength 5.00 107 m is used and the distance from the center of the central bright fringe to the first dark fringe is 5.00 103 m, what is the slit width? (a) 0.010 0 mm (b) 0.100 mm (c) 0.200 mm (d) 1.00 mm (e) 0.005 00 mm
A riverside warehouse has several small doors facing the river. Two of these doors are open as shown in Figure P27.17. The walls of the warehouse are lined with sound-absorbing material. Two people stand at a distance L = 150 in from the wall with the open doors. Person A stands along a line passing through the midpoint between the open doors, and person B stands a distance y = 20 m to his side. A boat o the river sounds its horn. To person A, the sound is loud and clear. To person B, the sound is barely audible. The principal wavelength of the sound waves is 5.00 m. Assuming person B is at the position of the first minimum, determine the distance d between the doors, center to center.
At a temperature of 20.0o two speakers are sending sound waves of frequency 512 Hz and 2048 Hz respectively toward a door opening of width 90.0 cm. Which wave frequency experiences a greater diffraction angle upon passing through the opening? Group of answer choices a.the 512 Hz b.the 2048 Hz c.both about the same
If the wavelength of a monochromatic source is 316 nm in vacuum, what is the wavelength from the same source when it passes through a liquid where the speed of light is 1.86 × 108 m/s? (c = 3.00 × 108 m/s)
Monochromatic light of wavelength 461 nm from a distant source passes through a slit that is 0.0310 mm wide. In the resulting diffraction pattern, the intensity at the center of the central maximum (θ = 0o) is 1.00×10−4 W/m^2. What is the intensity at a point on the screen that corresponds to θ = 1.20o?
Plastic coatings are put in a car's glass window (n = 1.52) in order to keep the interior of cars cooler. What should be the index of refraction of the plastic film with minimum thickness of 107.5nm if you want the reflected light from both sides of the film to have no relative phase shift and to interfere destructively? The wavelength of the light in air is 600nm. I. 2.791 II. 1.395 III. 1.861IV. 1.321
(I) Consider a film of MgF2 (n = 1.38) having a thickness of 8.68 x 10^-5 cm deposited on glass (n = 1.62). If white light falls perpendicular to the surface, what wavelengths are missing from the reflected light? (Hint: Remember only the wavelengths of visible light, between 400 nm and 700 nm.)If white light falls perpendicular to the surface, what wavelengths are missing from the reflected light?